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Really great thread OD. We need to roll this into a definitive LMTV air brake sticky. It sucks to page through 10 threads to find those part numbers for brake chambers or rebuild kits for one way valves.

This suspension design is to spread a heavy load across both axles. It limits articulation because as the front picks up it loads the back spring. because of the springs it harsh unloaded but cheap to build and great at heavy loads. If you were to change this truck you could go with more of a...

Any progress OD? I got my valve and fittings but have no time and a battery issue to contend with first.

The indicators of a good investment is how happy it makes you! I got a raft of crap for buying in Georgia and shipping to Oregon. At the end of it i have a running winch truck for $7500. listen to the supportive and let the bad eggs in the group fly over head. Happy recovery.

Only thing i can think of unless the valve is faulty. Were the brakes releasing?

Im kind of thinking res 2 needs to be plumbed in to air source. Like park and trailer are setup for seperate source and needs t instead of plug.

When you push park in and it stops venting are the brakes released?

I found very low priced seller so i picked up a couple valves. Now i just need to pick up my fittings and follow along.

I'd love to see some pictures. Been thinking of this mod for some time.

Great job OD! Sorry i was late in posting but glad it worked out. I was going to offer to buy them locally and ship them.

You should have an industrial hose supplier in your area. Any place that deals with hydraulic lines should carry air line stuff. We have a company locally called pacific rubber, they carry the same dot fitting for $3-$4.

Ok i see. Reducer bushings from 3/8 to 1/4 would work. The fittings on there are the same as i linked. You push or pull on the collar and the line pulls out to change them. I would be concerned about adding more leak points by using the reducers but they would be safe. Dot just certifies them...

to connect the air lines to valve. use DOT connectors. threaded on one end and push the tubing into the other. they are cheaper locally if you have a hose supplier or big rig parts store. hose barbs are not approved and your safety is at stake...

Had it shipped. The gentleman was retired truck driver and hot shoting for extra cash. Got it here in 3 days. I was rather surprised when he got out of the truck and started throwing off chains. He was 78 and spry as the day is long. Truck had bad fuel. Clogged filters. Two bad batteries and...

Air leaks between filter and tank? Filter sealed well? Drain seated properly? Try talc powder to look for seeping diesel. When I cleaned my fuel system out I heard a check valve/flapper in the tank. Have you tried blowing compressed air down the draw fitting to blow out debris and clear it...

To anyone who has installed this unit, what did you do about your gunners platform? i got mine put in but it looks like the GP needs to be trimmed an inch or so.

It is normal to hear air venting out of it when you pull the parking brake because it is actually venting the pressure away from the spring brakes, and that is where the air will vent to. It would be a good idea to check both your trailer supply valve and parking valve as my trailer valve was...

that's the vent end. it's connected to air brakes and CTIS, did your pressure gauge start dropping or did you just hear the air?

Thanks for posting the numbers Ron I meant to do it after I picked a couple up. On the first number the 5 should be removed. Wix 33755. If you haven't used fleet filter to purchase filters it's highly recommended. Napa runs around $50 for this one and ff is $22. There is also an xe version...

I replaced my trailer control valve as that is what was causing my air at rear glad hand. I started tracing the lines back from the front glad hand and i think they had this problem while it was in service because the check valve at the T is new. It functions correctly so i moved on to the the...